Still woring on Mary Long.
There was an early Nathaniel Waples bap 1746 (source St. George's Chapel)of Paul in Indian River Hundred of Sussex Co DE. I have no more info on him but I found maybe a descent of his:
Nathaniel Waples www.find-a-grave with this bio mentioning Ellen.
Birth: Apr. 26, 1803
Delaware, USA
Death: May 22, 1874
Indiana, USA

Born in Sussex, DE. Married Mary Watson b ca 1821, d 1835. They had 5 children; Ellen F.-b 1821, Julia A.-b abt 1828, Adeline-b abt 1835, Elizabeth-b abt 1831, William-b abt 1832. 2nd marriage in 1836 to Lucinda J. Owens-b abt 1816. They also had 5 children; Isaac O.-b 1839, Caroline-b 1846, Martha-b 1848, Irvin-b 1850, and Eli-b 1854. Nathaniel was a farmer in Pulaski County, Indiana